Having written the first book ever on UFO, 2005 s long out-of-print Shoot Out the Lights, Martin Popoff, author of over seventy rock books, has now greatly expanded and rewritten the later years material from that title, bringing us now Lettin Go: UFO in the 80s & 90s. Popoff brings to the project new interviews with the key members throughout the decades, along with a substantial amount of new research to offer what is now the only book to focus on the eighties and nineties era of the band that saw huge turbulence amongst the ranks. Utilising his celebrated one album per chapter method, Popoff analyses the complete catalogue from the period of the band where initially Paul Chapman takes over from the departed Michael Schenker for the albums. No Place To Run, The Wild, the Willing and the Innocent, Mechanix and Making Contact. The journey takes us through the albums following the departure of Chapman and bassist Pete Way and concludes with 1995 s Walk On Water that sees the classic line-up reunited with Schenker back on guitar before he sensationally walked out on the band after just four shows of the supporting tour. In and around Popoff s famed meticulous analysis of the catalogue, look for lots of tour talk, revealing nightmares surrounding the band s business, and warnings about how the twin demons of drugs and alcohol can slow a band s progress on the way to the top.